Meteor Observations with an Mf Radar

Abstract

We conducted meteor echo observations using the Buckland Park MF radar (35 S, 138 E) at 00:40{05:45LT on October 22, 1997. In addition to the usual full correlation analysis (FCA) technique to measure horizontal wind velocities from 60 to 100km MF radars have a potential to detect meteor echoes and infer winds through their Doppler frequency shifts. Because of the relatively low radio frequency employed MF radars have a great advantage of providing wind information well above 100km altitude, where very few techniques can measure wind velocities. We detected 233 underdense meteor echoes from 80km to 120km with a mean height of 104.4km. Although the transmitting antenna beams were steered toward o -zenith angles of 25 , almost all the echoes were received outside of the main lobe, indicating that conventional MF radar systems with a broad transmitting beam can work well for meteor observations. Bi-hourly wind pro les were obtained from 94 to 114km altitudes. The pro les revealed a clear wave structure with a downward phase progression with time. FCA winds from 80 to 100km were also estimated, and a continuous wind structure was obtained from FCA to meteor heights.

Cite this paper

@inproceedings{Tsutsumi2007MeteorOW, title={Meteor Observations with an Mf Radar}, author={Masaki Tsutsumi and David A. Holdsworth and Takuji Nakamura and Iain Reid}, year={2007} }